Grigori Perelman was the first to offer a proof to one of the problems and was officially awarded the Millennium Prize, as well as the Fields Medal. However, Perelman refused both awards and the associated prize money â to the surprise of many â as he believed that the prize was unfair.
1,722. Checks are usually considered stale-dated after 6 months from the date on the check, unless there is text on there that says something like Must be cashed within 90 days of issue. You can try taking it to your bank; they may cash it or they may tell you to get the check reissued.echo Signature here; 0.continuing my own thought) This is because a check is essentially my promise to reimburse you for $10. Further, I would prefer everyone would hold my checks for ten years. In the interim, inflation will make it worth less for the recipient than when I wrote the check, and will have earned interest for me to boot.
Full Answer. Some checks, such as payroll checks, have a specific expiration date. In this case, how long the check is valid is written on the front of the check. For instance, a check that says only valid for 90 days from the date issued will expire 90 days from the date on the check. In some cases, the issuer of the check will send a new check at the recipient's request, but they are not required to do so.